1949913 has 40 divisors (see below), whose sum is σ = 3523520. Its totient is φ = 1049760.

The previous prime is 1949911. The next prime is 1949929. The reversal of 1949913 is 3199491.

It is not a de Polignac number, because 1949913 - 2¹ = 1949911 is a prime.

It is a super-3 number, since 3×1949913³ = 22241647775333974491, which contains 333 as substring.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1949911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10683 + ... + 10863.

It is an arithmetic number, because the mean of its divisors is an integer number (88088).

2^1949913 is an apocalyptic number.

It is an amenable number.

1949913 is a deficient number, since it is larger than the sum of its proper divisors (1573607).

1949913 is a wasteful number, since it uses less digits than its factorization.

1949913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 210 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 1949913 is about 1396.3928530324. The cubic root of 1949913 is about 124.9314397361.

The spelling of 1949913 in words is "one million, nine hundred forty-nine thousand, nine hundred thirteen".